Foam generator for a cleaning machine



FIG. 1 is a top plan view of a foam generator for a cleaning machine showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is an elevational view taken from one side thereof;

FIG. 4 is an elevational view taken from the side opposite that shown in FIG. 3;

FIG. 5 is an elevational view taken from one end thereof; and

FIG. 6 is an elevational view taken from the end opposite that shown in FIG. 5. 

The ornamental design for a foam generator for a cleaning machine, as shown and described. 